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lexer: show correct span on unrecognized token start 

Fixes part of #7048.
This commit is contained in:
Philipp Brüschweiler 2013-06-11 11:38:59 +02:00
parent 6bdd4c8545
commit 1ac90bb74b
1 changed files with 5 additions and 1 deletions
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6
src/libsyntax/parse/lexer.rs
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@ -772,7 +772,11 @@ fn next_token_inner(rdr: @mut StringReader) -> token::Token {
'/' => { return binop(rdr, token::SLASH); }
'^' => { return binop(rdr, token::CARET); }
'%' => { return binop(rdr, token::PERCENT); }
c => { rdr.fatal(fmt!("unknown start of token: %d", c as int)); }
c => {
// So the error span points to the unrecognized character
rdr.peek_span = codemap::mk_sp(rdr.last_pos, rdr.pos);
rdr.fatal(fmt!("unknown start of token: %d", c as int));
}
}
}